Heated Mattress Pad Cost Calculator
| Pad watts ↓ · rate → (monthly, 8 h/night) | 12¢ per kWh | 17¢ | 25¢ |
|---|---|---|---|
| 60 W single | $1.75 | $2.48 | $3.64 |
| 90 W | $2.62 | $3.71 | $5.46 |
| 120 W dual | $3.50 | $4.95 | $7.28 |
| 180 W dual king | $5.24 | $7.43 | $10.93 |
Set the pad wattage, hours per night and your electric rate: the calculator prices a heated mattress pad per night, per month and per 120-night heating season.
A pad draws 60 to 180 watts - a fraction of any space heater - because it warms the bed directly instead of the air. Warming the mattress under you is roughly sixteen times cheaper per hour than warming the whole bedroom to feel the same warmth, which is why the pad is the cheapest comfort in the winter house.
How to use
- Wattage is on the pad tag or the box: singles usually run 60 to 90 watts, dual-control queens and kings 120 to 180.
- Your electric rate is on the utility bill in cents per kWh; the national average sits near 17 cents.
- Try the pre-heat pattern too: 30 minutes on high before lights-out, then off, costs about a sixth of running it all night.
Frequently asked questions
How much does a heated mattress pad cost per month?
At 17 cents per kWh, a 90-watt pad run 8 hours a night costs about 12 cents a night and $3.71 a month - $15 for a 120-night season. Even an 180-watt dual-control king is under $8 a month at the same rate.
Is a heated pad cheaper than a space heater?
By roughly 16 to 1: a 1,500-wear space heater holding a bedroom all night costs about $1 an hour, while the pad under you draws 60 to 180 watts. The pad warms the bed, not the room - if you also want the room warm, that is a different bill.
Does a heated mattress pad use much electricity?
No - it is among the cheapest electric comfort in the house: less than a desktop computer, far less than a dryer or water heater. The cost scales linearly with hours, so a timer pays for itself in the first month.
Heated pad vs electric blanket - which costs less?
The math is identical: cost is watts times hours times rate, and pads and blankets draw similar power. The difference is delivery - a blanket covers your body directly so many people run it at a lower setting, while a pad holds the whole bed surface warm regardless of position.
Is it safe to leave on all night?
Modern pads have auto-shutoffs and are designed for overnight use; keep them flat (folding traps heat), skip pins, and check the controller cords each season. Pets and very low settings deserve a read of the manual - the safety rules differ slightly by brand.